AMD Radeon HD 7640G + HD 7670M Dual Graphics
The AMD Radeon HD 7640G + HD 7670M Dual Graphics is the combination of a integrated AMD Radeon HD 7640G APU processor graphics card and a dedicated entry level AMD Radeon HD 7670M graphics card in CrossFire combination. It is called AMD Dual Graphics or asymmetric CrossFire and uses AFR (Alternate Frame Rendering) to render different frames on the two graphic cores. Therefore the combination also suffers from micro stuttering (different spaces between two images lead to stuttering altough the framerate is high enough for fluent gaming with only one GPU).
The performance of the Dual Graphics solution depends greatly on the driver support for the used games. In some games the performance may even degrade by 10-15% compared to using only the APU graphics card. Therefore, due to the micro stuttering and performance problems, Dual Graphics may impose more problems than bring performance gains. Only in a best case scenario the performance is similar to the GeForce GT 635M.
The features like PureVideo HD (UVD3) or OpenCL support are similar to the two graphics cards.
As both graphics cards are rendering frames, the power consumption is clearly higher than using only one GPU.
| Manufacturer | AMD | ||||||||||||||||||||||||||||||
| Radeon HD 7600M Series |
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| Architecture | Terascale 3 | ||||||||||||||||||||||||||||||
| Pipelines | 736 - unified | ||||||||||||||||||||||||||||||
| Core Speed * | 655 / 600 MHz | ||||||||||||||||||||||||||||||
| Shader Speed * | 655 / 600 MHz | ||||||||||||||||||||||||||||||
| Memory Speed * | 900 MHz | ||||||||||||||||||||||||||||||
| Memory Bus Width | 128 Bit | ||||||||||||||||||||||||||||||
| Shared Memory | yes | ||||||||||||||||||||||||||||||
| DirectX | DirectX 11, Shader 5.0 | ||||||||||||||||||||||||||||||
| technology | 32/40 nm | ||||||||||||||||||||||||||||||
| Notebook Size | medium sized | ||||||||||||||||||||||||||||||
| Date of Announcement | 15.05.2012 |
Benchmarks
3 benchmarks and specifications
3 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| K75DE-TY068H | A8-4500M | 4096 MB | 200/600 / 800/899MHz | 512/1024MB 4.2.11774 | 37273 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 53786 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 53786 |
3 benchmarks and specifications
3 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 5715 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 5715 |
| K75DE-TY068H | A8-4500M | 4096 MB | 200/600 / 800/899MHz | 512/1024MB 4.2.11774 | 6983 |

3 benchmarks and specifications
3 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 623 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 623 |
| K75DE-TY068H | A8-4500M | 4096 MB | 200/600 / 800/899MHz | 512/1024MB 4.2.11774 | 753 |





















4 benchmarks and specifications
4 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| K75D Sample | A8-4500M | 4096 MB | 1585 | ||
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 1628 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 1628 |
| K75DE-TY068H | A8-4500M | 4096 MB | 200/600 / 800/899MHz | 512/1024MB 4.2.11774 | 1664 |
4 benchmarks and specifications
4 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| K75D Sample | A8-4500M | 4096 MB | 1629 | ||
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 1649 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 1649 |
| K75DE-TY068H | A8-4500M | 4096 MB | 200/600 / 800/899MHz | 512/1024MB 4.2.11774 | 1757 |
4 benchmarks and specifications
4 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| K75D Sample | A8-4500M | 4096 MB | 4696 | ||
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 5049 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 5049 |
| K75DE-TY068H | A8-4500M | 4096 MB | 200/600 / 800/899MHz | 512/1024MB 4.2.11774 | 5085 |
4 benchmarks and specifications
4 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| K75D Sample | A8-4500M | 4096 MB | 4554 | ||
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 4887 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 4887 |
| K75DE-TY068H | A8-4500M | 4096 MB | 200/600 / 800/899MHz | 512/1024MB 4.2.11774 | 4918 |
4 benchmarks and specifications
4 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| Standard 1280x1024 | |||||
| K75D Sample | A8-4500M | 4096 MB | 7090 | ||
| K75DE-TY068H | A8-4500M | 4096 MB | 200/600 / 800/899MHz | 512/1024MB 4.2.11774 | 8410 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 8493 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 8493 |
3 benchmarks and specifications
3 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 10288 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 10288 |
| K75D Sample | A8-4500M | 4096 MB | 10632 |
1 benchmarks and specifications
1 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| K75D Sample | A8-4500M | 4096 MB | 21584 |

1 benchmarks and specifications
1 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| K75DE-TY068H | A8-4500M | 4096 MB | 200/600 / 800/899MHz | 512/1024MB 4.2.11774 | 3528 |





















2 benchmarks and specifications
2 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| K75DE-TY068H | A8-4500M | 4096 MB | 200/600 / 800/899MHz | 512/1024MB 4.2.11774 | 17.26 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 31.57 |
2 benchmarks and specifications
2 benchmarks and specifications
Show comparison chart
Hide comparison chart| Model | CPU | Memory | Core / Memory | GPU Memory | Value |
| K75DE-TY068H | A8-4500M | 4096 MB | 200/600 / 800/899MHz | 512/1024MB 4.2.11774 | 4566 |
| Serie 3 355E7C-S05DE | A8-4500M | 8192 MB | 335-655 / 800MHz | 2048MB 8.982.10.5000 | 4612 |
Game Benchmarks
The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailled information on the benchmark results, click on the fps number.
AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
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AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison



















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (200/600MHz), 512/1024MB (800/899MHz) , 4.2.11774
4096MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (200/600MHz), 512/1024MB (800/899MHz) , 4.2.11774
4096MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (200/600MHz), 512/1024MB (800/899MHz) , 4.2.11774
4096MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (200/600MHz), 512/1024MB (800/899MHz) , 4.2.11774
4096MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison



















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (200/600MHz), 512/1024MB (800/899MHz) , 4.2.11774
4096MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (200/600MHz), 512/1024MB (800/899MHz) , 4.2.11774
4096MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (200/600MHz), 512/1024MB (800/899MHz) , 4.2.11774
4096MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (200/600MHz), 512/1024MB (800/899MHz) , 4.2.11774
4096MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (200/600MHz), 512/1024MB (800/899MHz) , 4.2.11774
4096MB RAM
AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (200/600MHz), 512/1024MB (800/899MHz) , 4.2.11774
4096MB RAM
AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (200/600MHz), 512/1024MB (800/899MHz) , 4.2.11774
4096MB RAM
AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison




















AMD A-Series A8-4500M 1.9GHz
Radeon HD 7640G + HD 7670M Dual Graphics (335-655MHz), 2048MB (800MHz) , 8.982.10.5000
8192MB RAM
Compare
Hide Comparison





























































































































For more games that might be playable and a list of all games and graphics cards visit our Gaming List
Notebook reviews with AMD Radeon HD 7640G + HD 7670M Dual Graphics graphics card
Asus K75DE-TY068H: AMD A-Series A8-4500M, 17.3", 3.1 kg
Review » Review Asus K75DE Notebook
Samsung Serie 3 355E7C-S05DE: AMD A-Series A8-4500M, 17.3", 2.8 kg
Review » Review Samsung Series 3 355E7C-S05DE Notebook



